The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2011
Filed:
Jul. 14, 2003
Applicants:
Martin Weston, Petersfield, GB;
Avigdor Steinberg, Petersfield, GB;
Inventors:
Martin Weston, Petersfield, GB;
Avigdor Steinberg, Petersfield, GB;
Assignee:
Snell Limited, Hampshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/21 (2006.01); H04N 5/213 (2006.01);
U.S. Cl.
CPC ...
Abstract
A video noise reducer divides a signal into spatial frequency bands and derives both recursively and non-recursively filtered signals for each band. Both signals are processed non-linearly. These signals are combined in ways that vary between the bands to provide a noise signal and a detail signal. A clean video signal with all noise removed is used in the recursive loop. The output signal includes detail enhancement and may have a subjectively pleasant amount of noise added back.